Discharge-controlling device for dump bodies



Dec. 31, 1929.

F. D. COPPOCK DISCHAR GE CONTROLLING DEVICE FOR DUMP BODIES Filed NOV. 19, 1928 .2 Sheets-Sheet 1 INVENTOR.

Dec. 31, 1929. F. D. coPPocK ,0

DISCHARGE CONTROLLING DEVICE FOR DUMP BODIES Filed Nov. 19, 1928 2 Sheets-Sheet 2 INVENTOR.

Frealflaoppack,

ATTORNEY.

yy Patented Dec. 31, I 92 v y i Q UNITD STARS PTENT nlar F ED D. COPIOCK, or GREENVILLE, onio nrsonARen conrnoLLrNe DEVICE FORDU P BODIES Application filed November 19, 1928. Serial No. 320,463.

This invention relates to a device for con- Figure 3 is a section taken on line 33 or trolling the flow of material from the bed of Figure 1. y 1 a conventional pivoted dumpbody through Referring to the drawings in detail the a discharge opening inthe tail gate thereof, numeral 1 indicates generally a truck body which control mechanism is operated from which is pivotally mounted adjacent its rear 55 the ClIiVGI S seat and can be used in conne end on a pair of frame members 2 extending tion with any type of conventional dumping longitudinally of the truck body. The pivbody in which it is desired to positively conotal connection for the truck body is inditrol the flow of material from the body as it cated at 3 and is disposed to permit the body is being dumped. to swing in a vertical arc. i

The primary object of the invention is to The body 1 is provided at its rear end with provide, in amanner as hereinafter set forth, a tall gate, 4 which is provided with a rea device adapted to be connected with a tail inforcing member The reinforcing memgate as aforesaid, by means of which the disher 5 is preferably formed of angle iron and charge opening of the tailgate may be cjonextends entirely around a marginal portion 5 trolled from the drivers seat of the vehicle f the Outer face of the tail gate 4. The tit with which the tail gate is associated. gate 4 is secured in position by means or a A f rth obje t f th i venti is to pair of combinedlatch and pivot members inprovide a discharge coititrolling device as ated convent onally at 6, by means of afgregaid, hi h i d t d f Connection which the tail gate is secured to the truck with a fiat bottom dump truck and which is at t e lower ge of t e tall g and a n assembled in uch a manner with respgct t0 Of COlllblllQd liltCll and piVOt- ETlGlZUbQIS 7 by then- 1; as t b -[f t d' by th moving meansof which the tail gate is secured to the elements of the truck during the dumping Sides 8 0f h y at i113 SiCleS of the tall operation of th latt r, 7 gate andadpcent the top thereof. 75

A further object of the invention is to pro e all gates is formed with a di harg vide a discharge controlling device as afore- P g' 9 WhIGh eXtends over the entire said, which is simple in construction, posi- Wldth 0f the y 1 n which tendS 11D- tive in operation, economical to manufacture wardly a antlal dlst ance from the and which may be readily installed in connecbottom of the body 1 A shde valve 101s 8'1 tion with a conventional dump body. 1 r h? opening 9, which 1s heldin W 1th th f r o i d th bj ti positlon by a palr of guide members 11 whlch View the invention consists in the novel con- W P to the d P Q of [116 struction, combination and arrangement of q g member Theiguilde 11191111991311 parts as hereinafter more particularly de- 1 lnwiwcuy from the t portwnspf 85 scribed, and as illustrated in the accompanyt f g irlambefr Z i ing drawings wherein is shown a preferred 1 3 Cu t m gate J i i guide-ways wlthln which the valve 10 1s veiembodnnent ol the invention, but it is to be Beau shdable a,

40 llnderstood t -F i f ii i i Pidbtally secured to the outer face ofthe 90 non t pf g v 1 lustamve MUM tail gate 4: is a pair of spaced bell cranks than hmlbatlve' 1 i 12, the lower ends of which are pivotally In the accompanymg qmwmgs, In which connected to the upper ends of a pair of like numeralsare employed to designate lik links 13 The lower end of the links are parts throughout the same 1 Figure 1 is rear endvelemtion of a p angle iron 15 secured to the outer face of the truck showing an embodiment of my invenlid v lv 10 dj t th t f th l tt tion in association therewith. The bell cranks 12 are disposed at the same Figure 2 is a fragmentary side elevation of angle and the links 13 respectively are disthe same shown partly in section. posed an equal distance from the respective pivotally connected as indicated at 14, to an nections 3 which connect the body 1 with thebody 1 is an elongated lug 18, which is formed with a pair of spaced guides .19 through which transversely. extends aflpivot pin 20.

The inclination of the mg 18 is in arearward" direction from the bottom to the top thereoi.

Secured to the guides 19 by means of the pivot pin 20 is an actuatinglever 21 which extends at the same inclination as the lug 18 and which terminates at its upper end adjacent one of the combined latch and pivotmembers 7 Extending; through such combined latchand pivot member 7 isa.connect-- mg rod 22, the outer end of which. is pivotally connected to the upper end ofthe actuating lever 21.

The inner end of the connecting rod 2218 swivelly connected to one end of a link 23-, the other end of which is pivotally connected to the upper arm 17 of one of the bell cranks 12.. The connecting; rod 22 and link 23 in their assembled relation provide a joint ed link connection between the'upper end of. the actuating lever 21 and one of the bell cranks 12.

The lower end of the actuating lever 2.1 projects below the bodyl and terminatesin horizontal alignment with the pivotal con frame members 2. Secured to one of the frame members 2- and projecting laterally therefrom at a slight upward inclination is a bracket 24, which terminates at its outer end in a vertically apertured boss 25. The bracket 24 is disposed forwardly ofthepivotal connection'il. Pivotally mounted on the boss 25 is a bell. crank 26, one end. of. which is pivotally connected to a pull rod27 which extends in a forward direction in. proximity to the drivers seat, not shown, of the truck body, and the other end of which is pivotally connected to a yoke28. Connecting the yoke 28 with the actuating lever 21 is a connecting rod 29, one end of. which is swivelled into the yoke 28, as indicated at 30,. and the other end of which. is pivotally connected, as indicated at 31, to the lower'endof the actuuating lever 21.

The ivotal connection 3L and swiveled connection 30 are in horizontal alignment with the pivotal connections for the body 1. and the. swiveled connection 30 is providedto permit a relative movement between the con nertmg rod 29 and-yoke 28- whenthe truck.

body 1 is swung about its pivotal connections 3. When a pull is exerted on the pull rod 27, such pull. is transmitted; through the bell crank 26, yoke 28 and conneetingyrod 29,.

to the actuating. lever 21,, causing; the latter to be swung on its pivot 20 with the lower end of the lever 21 moving towards the body 1 and with the upper end of the lever 21 moving away from the body 1.

As the upper end of the actuating lever 21 is moved away from the body, a pull is exerted through the connecting rod 22 and link 23 to the bell crank 12 to which the link 23 connected. Due to the tie rod 16 which connects, the upper arms 17 of the bell cranks 12, any force exerted on one of the bell cranks causes them both to move in unison. Owing to the rigidity of all of the intermediate members connecting the valve 10 with the pull rod 27, the valve 10 may be reciprocated by a reciprocation of the pull rod 27.

The tail gate 4 may beused independently of the discharge control mechanism when it is desired to swing it in an upward direction.

from member 6 without disconnecting, any of the control mechanism. WVhen it isdesired to swing, tail gate 4 in a downward direction from member 7 the control. mechanism must be disconnected by removing pivot pin 32 which connects the upper end of the actuating lever 21 with connecting rod 22.

It is thought that themany advantages of a. discharge controlling device in accordance with this invention will be readily apparent, and although the preferred embodiment oi the invention is as illustrated. and described, yet it is to be understood that variouschan ges may be made in the details of construction which fall within the scope of the invention.

as defined in the appended claims.

\Vhat I claim is:

1-. In a pivoted dump body, a. lever pivotally connected; intermediate its ends to a side of the body, mechanism pivotally con nected to one end of said lever for controlling the discharge of material from the body, means pivotally connected with the opposite end of said lever whereby the latter may be operatedv from the drivers seat of the body, said opposite end of the lever beingv disposed in horizontal alignn'ient with the pivot for the body, said means including a rod pivotally connected to said opposite end of the lever and extending longitudinally in alignment with said opposite end and pivot for the body, and a bell crank swivelly connected with said rod.

2. In. a pivoted dump. body, a lever pivotally connected intermediate its ends to a side of the body, mechanism pivotally connected to one end of said lever for controlling the discharge of material from the body, means pivotally connected with the opposite end of said lever whereby the latter may be operated from. the drivers seat of the body. said opposite end of the lever being disposed in horizontal alignment with the pivot for the body, said discharge controlling mechanism including, a vertically slidable tail gate valve, a pair of' bell cranks each pivnism for the body, means pivotally and slidably connecting said mechanismwith the body, an operative shifting connection between said mechanism and one end of said lever, and means pivotally connected with the opposite end of said lever whereby the latter may be operated from the drivers seat of the body, said lever being inclined rearwardly from bottom to top and operating on its pivot transversely of the body.

4:. In a dump body, a lever positioned at one side of the body in proximity to the rear end oi the latter, means pivotally connecting said lever intermediate its ends to said side of the body, a discharge controlling 1nechanism for the body, means pivotally and slidably connecting said mechanism with the body, an operative shifting connection between said mechanism and one end of said lever, a rod pivo-tally connected to the oppositeend ofsaid lever; a bell crank swivelly connected with said rod, and a pull rod piv otally connected with said bell crank and extending in proximity to the drivers seat of the body, said lever being inclined rearwardly from bottom to top and operating on its pivot transversely of the body.

5. In a pivoted truck body, an actuating lever pivoted intermediate itsends to one side of the body, said lever being of a length to depend below the bottom of the body, a

vertically shiftable slide valve for controlling the discharge of material from one end of the body, guides retaining the valve in position, spaced lifting and lowering devices for the valve and each including a pivoted bell crank, said bell cranks being connectcd together foroperating in unison, an

, operative shifting connection betvveen one of the bell cranks and said actuating lever, and a lever mechanlsm positioned below the body and connected to the lower end of said actuating lever for shifting it, said lever mechanism including a pull rod adapted to be operated from the drivers seat of the bodv. y

' 6. In a pivoted truck body, anactuating lever pivoted intermediate its ends to one side of the body, said lever being of a length to depend below the bottom of the body, a vertically shiftable slide valve for controlling the dischargcof material from one end of i the body, guides retaining the valve in position, spaced lifting and lowering devices for the valve and each including a pivoted bell crank, said bell cranks being connected together for operating in unison, an operative shifting connection between one of the bell cranks and said actuating lever, and a lever mechanisrn positioned below the body and connected to the lower end of said actuating lever for shifting it, said lever mechanism including a pull rod adapted to be operated from the drivers seat of the body, said lever mechanism being provided with a swivel 1o1nt in horizontal alignment with the plvot for the body.

7. In a pivoted truck body, an actuating lever pivoted intermediate its ends to one side of the body, said lever being of a length to depend below the bottom of the body, a ver tically shiftable slide valve for controlling the discharge of material from one end of the body, guides retaining the valve in position,

spaced lifting andlowering devices for the valve and each including a plvoted bell crank,

said bellcranks being connected together for operatingin unison, an operative v shifting connection between one of the bell cranks and said actuating lever. and a lever mechanism positioned below the body and connected to the lower end of said actuating lever for shifting it, said lever mechanism including a pull rod adapted to be operated from the drivers seatof the body, said lever mechanism being provided with a swiveled oint in horizontal alignment with the pivot for the body, said actuating lever having its lower end disposed in horizontal alignment with said swiveled joint.

8. In a dump body of the typepivoted adjacent its rearward end to swing in a vertical arc, a lug projecting laterally from one side of the body, a lever pivoted intermediate its ends to said lug, said lever inclining rear wardly from bottom to top and beingof a length to project below the body; a tail gate for the body provided with a discharge opening. a vertically slidable valve for controlling said opening, means operatively connecting said valve with the upper end of said lever whereby the valve is reciprocated by the oscillation of the lever on its pivot, and mechanism connected with the lower end of'said lever for oscillating the latter, said mechanism including a pull rod extending in proximity to the drivers seat of the body. y

, 9. In a dump body of the type pivoted adj acent its rearward end to swing in a vertical are, a lug projecting laterally from one side of the body, a lever pivoted intermediate its ends to said lug, said lever inclining rearwardly from bottom to top and being of a length to projectbelow the body, a tail gate forthe body provided with a discharge opening, a vertically slidable valve for controlling said opening, means operatively connecting said valve with the upper end of said lever whereby the valve is reciprocated by the osc'illation of the lever on its pivot, and mocha nism including a pull rod extending in proximity to the drivers seatofthe body and further including a. swiveled joint disposed inv horizontal alignment with the lower end of said lever andthe pivot for the body.

10, Ina dump body of the type pivoted adjacent its rearward end to swing in a vertical arc, a lug projecting laterally, fromone side of the body, a lever pivoted intermediate its ends to said lug, said lever inclining. rearwnrdly from bottom to top and being of a jacentitsrearwardend to swingin a; vertical arc, alng-projecting laterally from one side oithe body. a lever pivoted. intermediate its endsto said, lug, said lever inclining rear,-

wardly. fromv bottomto, top and beingof= a. length to project below. the body, a tail gate for the, body provided with a. discharge opening, a vertically slidable valve for controlling said opening, means operatively connecting slid valve with the upper endof said leverwhereby the, valveis reciprocatedby the oscillation of the lever on its pivot, andmechanism connected withithe lower end. of. said lever. for oscillating the, latter; said mechanism including a pull rod extending in proximity to the drivers seatof the body, said means including a pair ofbell crankspivotedto said tail gate,. and a pair. of links. pivot.- connecting said bell cranks tosaid valve.

12. In a dump body of the type pivotedv adjacent its rearward end to swing in a: verticalarc, a lug projecting laterally from one side of'the body, a. lever pivoted. intermediateits ends-to said. lug, said lever inclining;

rearwardly from bottom to. top and being of a length to project below-the body, a tailgate for the bodyprov-ided witha discharge opening, avert-ically slidable valve for controlling said. opening, means operatively connecting a said valve witlrthe upper end of saidlever whereby the valve is reciprocatedlby the-oscillationof the leveron its-pivot, mechanism connected with the lower-end of said lever:

for oscillating the latter, said mechanism iii-- eluding a pull rod extending in proximity to the drivers-seat of the body, said means including apair of bell cranks pivoted to said tailgate, apairoflinks pivotally connecting 7 said: bell cranks to-said valve, a jointed linlc comwctangone'ofrsaidbell cranks with the' upper endof said lever, and a tie rod connecting the bell cranks for operating the latter in unison.

13. In an attachment tor-a pivoted. dump body, a lever adapted to be pivotally connected intermediate its ends to a side of the body, mechanism pivotally connected to one end of the lever for controlling the discharge of material from the body, means pivotally connected with the opposite end of the lever whereby the latter may be operated from the drivers seat of the body, said opposite end of the lever being adapted to be disposed in horizontal alignment with the pivot for the body, said means-including a rod pivotaily connected to said opposite end of the lever and adapted to extend transversely of the body in horizontal alignment with said opposite end and the pivot -for the body, and also including a bell crank swivelly connected with said rod.

14. In an attachment for a pivoted dump body, a lever adapted to be pivotally connected intermediate its ends to a side of the body, mechanism pivotally connected to one cndof the-leverfor controlling the discharge of material from the body, meanspivotally connected with the opposite end of the lever whereby the latter may be operated from the drivers seat of the body, said opposite end oi'ithe lever being adapted to be disposed in horizontal alignment with the pivot for the body, said means including a rod pivotally connected to said opposite end of the lover and adapted to extend transversely of the body in horizontal alignment'with said opposite end and the pivot for the body, said discharge controlling mechanism including a vertically slidable tailgate valve and .further including a pair of bell cranks, each pivotally connected at one end with said valve, and means pivotally connecting the opposite ends of said bell cranks with said lover.

1'5. In an attachment for a pivoted truck body, an actuating lover adapted tobe pivotally connected intermediate itscnds to one side of the body, a. vertically shittable slide valve for controlling the discharge of material from one end of the body, spaced litting' andloweringdevices for the valve and each including a pivoted bell crank. said bellcranks being connected together for operating in unison, an operative shifting connection between one of the bell cranks and said actuating lever, and a-lever mechanism connected to the lower en d of said actuating lever for shifting it and including a pullirod adapted to be operated from the driversscat ofthe body.

16; In an attachment for a pivoted truck body, an actuating lever adapted to lie-pivot ally connected intermediateits ends to one side of the body, a! vertically shiftable slide valve for controlling the discharge of mate rial from one end of the body, spaced lift ing and lowering devices for the valve and each including a pivoted bell crank, said bell cranks being connected together for operat ing in unison, an operative shifting connection between one of the bell cranks and said actuating lever, and a lever mechanism connected to the lower end of said actuating lever for shifting it and including a pull rod adapted to be operated from the drivers seat of the body, said lever mechanism being provided with a swivelled joint adapted to be positioned in horizontal alignment With the pivot for the body,

17. In an attachment for a dump body of that type having a vertically shiftable tail gate,a lever adapted to be pivotally connected intermediate its ends to one side of'the body, a rod pivotally connected to the upper end of said lever, spaced lifting and lowering devices for the tail gate, a tie rod pivotally connected with each of said lifting and lowfering devices, one of said lifting and lowering' devices being pivotally connected to said rod, a rod pivotally connected to the lower end of said lever, a bell crank swivelly connected to said last named rod, and a pull rod pivotally connected to said bell crank.

In testimony whereof, I afiix my signature hereto.

FRED D. COPPOCK. 

